package cn.edu.tyu.finance.thingstype.servlet;

import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import cn.edu.tyu.finance.util.DbUtil;

/**
 * Servlet implementation class AddUserServlet
 */
@WebServlet("/AddUserServlet")
public class AddUserServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public AddUserServlet() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		//1. 接收网页传来的数据
		String uname = request.getParameter("username");
		String upsw = request.getParameter("userpsw");
		//2. 连接数据库把接收到的数据写入表里
		Connection conn = null;
		PreparedStatement pstmt = null;		
		conn = DbUtil.getConnection();
		int flag = 0;
		String sql = "INSERT INTO users VALUES(?,?,?)";
		try {
			pstmt = conn.prepareStatement(sql);
			pstmt.setString(1, (int)(Math.random()*1000) + "");
			pstmt.setString(2, uname);
			pstmt.setString(3, upsw);
			flag = pstmt.executeUpdate();//下达执行指令
			if (flag == 0) {
				response.sendRedirect("fail.jsp");
			} else {
				response.sendRedirect("ok.jsp");
			}
		} catch (SQLException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			//3. 关闭数据库资源
			DbUtil.backConn(conn, pstmt, null);
		}			
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		doGet(request, response);
	}

}

